Skip to main content

ICM 2021

Date, Type of contribution, Location:
09.03.2021,Talk,online
Event:
International Conference on Mechatronics
Further information:

Description:

Picometer-Scale Positioning of a Linear Drive System via Feedforward-Feedback Control. Alex S. Huaman1, Michael Katzschmann1, Steffen Hesse1, Christoph Schäffel1,Christoph Weise2, Denis Dontsov3, Eberhard Manske2 and Johann Reger2

1IMMS / 2Technische Universität Ilmenau, 3SIOS Meßtechnik GmbH

This work deals with the controller design of alinear drive system with potential applications in picometer-scale positioning. The displacement is measured using a high-precision differential plane-mirror laser interferometer. However, this measured signal must be filtered for control purposes and performance validation. For tracing picometers, we adopt a model-based 2-DOF control architecture with a feedforward stage for model-following and a feedback stage for stabilization and compensation of constant disturbances. A straightforward way to deal with noise is to use a feedback controller based on estimated (and filtered) states, which can be generated by a Kalman-Bucyfilter. The effectiveness of the presented control strategy is verified via real-time experimentation, where the overall control scheme allows positioning in the picometer level. Moreover, comparative tests in the frequency domain were conducted using the so-called PI-LQR feedback controller based on estimated states.

Contact

Contact

Dipl.-Hdl. Dipl.-Des. Beate Hövelmans

Head of Corporate Communications

beate.hoevelmans(at)imms.de+49 (0) 3677 874 93 13

Beate Hövelmans is responsible for the text and image editorial work on this website, for the social media presence of IMMS on LinkedIn and YouTube, the annual reports, for press and media relations with regional and specialist media and other communication formats. She provides texts, photographs and video material for your reporting on IMMS, arranges contacts for interviews and is the contact person for events.

Back